Value of type bool can be true or false.

Zero value of bool is false.

https://codeeval.dev/gist/09bea09b2d80e5317ca402e4f4982ec5

Size of bool variable (e.g. when part of a struct) is 1 byte.

https://codeeval.dev/gist/ed82d04270fd27094ef4a7a9dfda5b51